He also established a league record by being named to the All-NBA Team and All-NBA Defensive Team in the same season for a 15th time, according to the Spurs' official website. He was named to the All-NBA Defensive Second Team on May 20.

This season, Duncan averaged 13.9 points, 9.1 rebounds and 1.96 blocks (eighth in the NBA). He is the first NBA player who is 38 years old or older to average at least 13.0 points and 9.0 rebounds.

Duncan's 1.96 blocks per game is the highest average for a player aged 38 years or older since the league first kept track of this statistic 42 years ago, per the Spurs' press release.

This is also the 18th consecutive year a San Antonio Spurs player has been named to the All-NBA Team. Overall, this is the 40th time that a Spurs player has earned All-NBA Team honors. The franchise has had 19 First Team selections, 11 Second Team selections and 10 Third Team selections, per the Spurs' official website.

At 39 years of age, Duncan becomes the oldest player who has made it to an All-NBA Team since a 38-year-old Abdul-Jabbar was bestowed All-NBA First Team honors in the 1985-86 NBA season, per the Spurs' press release.

Duncan's teammate, 2014-15 Kia NBA Defensive Player of the Year Kawhi Leonard, just missed being named to the All-NBA Team as he finished behind Duncan (167 points) with 155 points for the final forward spot, per MySanAntonio.com's Jeff McDonald.

Four-time NBA MVP LeBron James of the Cleveland Cavaliers and 2014-15 NBA MVP Stephen Curry of the Golden State Warriors spearhead the All-NBA First Team.

A May 21 ESPN update says this is James' eighth consecutive All-NBA First Team selection and ninth overall. He avearged 25.3 points and 7.4 assists per game to lead a rejuvenated Cavaliers team to a 53-29 record and a postseason berth.

Another NBA-record for Duncan: This is the 15th time he has appeared on both the All-Defensive Team and All-NBA Team in the same season.— San Antonio Spurs (@spurs) May 21, 2015

James was grateful for the honor, per ESPN:

"I've been able to play at a high level for a long time. I take my craft very seriously. I try to be the best I can be every single night when I'm out on the floor. To be rewarded again, it means a lot.

"I've done something pretty cool in my career so far, and hopefully I can continue."

With James and point guard Kyrie Irving being named to the All-NBA Teams on Thursday, the Cavaliers were one of three teams who had more than one representative. The Los Angeles Clippers had Chris Paul, Blake Griffin and DeAndre Jordan while the Golden State Warriors had Curry and Klay Thompson, per ESPN.

Curry averaged 23.8 points, 7.7 assists and 2.04 steals per game during the 2014-15 NBA season. He also established a record for three-pointers made with 286. He is the first Golden State player to earn All-NBA First Team honors since Latrell Sprewell in the 1993-94 campaign, per ESPN.

Houston Rockets guard James Harden, who averaged 27.4 points and 7.0 assists, earned his second straight All-NBA First Team selection. He is the first Rockets player to accomplish this since Hakeem Olajuwon in 1992-93 and 1993-94, per ESPN.

The ESPN update also mentions Harden is the first NBA player to make at least 700 free throws and 200 three-pointers in the same season.

New Orleans Pelicans forward Anthony Davis, who averaged 24.4 points and 10.2 rebounds per game, is the first player to make the All-NBA First Team within his first three seasons since Derrick Rose accomplished it in 2010-11. Davis also led the league in blocks with a 2.94 average, per ESPN.

Rounding up the All-NBA First team is Memphis Grizzlies center Marc Gasol, who averaged a career high 17.4 points per game in 2014-15. He is the first Spanish-born player to be named to the All-NBA First Team, per ESPN.